Roijl material strip cutter



June 20, 1950 J. S. MaclNTYRE I 2,511,927

ROLL MATERIAL STRIP CUTTER Filed May 19. 1945 777614442 vmourfl/ Patented June 20, 1950 UNITED" STATES PATENT OFFICE This invention" 1'81815851130" improvements in roll material stripcutters.

A general object of the invention is to provide, in connectionwith spool-wound rollmate rial, a simple: and convenient" strip cutteradjustably mounted on an'extent of theroll material and available at'all times for severing deon' an extent 0t the roil material and arranged to normally lie compactly onthe surface of the roll between the'side-fianges of 't-he roll spool; per-' mitting the spool to: be contained in a standard housing or container. I

, ing the strip cutter moved inwardly on the un-, wound extent of material whereby'a desiredextent of the material maybe severed;

Fig. 4 isa; plan view of the improved-roll material strip cutter on a larger scale and with a portion brokenaway to show structural details;

Fig. 5 is a View looking at the inner end of the strip cutter; and

Fig. 6 is a top edge view of the strip cutter.

The improved roll material strip cutter is applicable to a type of spool or core wound roll material such as adhesive tape. In the exemplification illustrated; the roll material. is shown wound on a conventional metallic spool member 8 whose spaced peripheral flanges 9. provide therebetween-an annular groove for the recep- A further object of the invention is toprovide a rollmaterial strip cutter adjustably mounted on an" extent -of thero'll material in a manner soas to mark'and locate the free end" oh the rollmaterial' and furtherpermitting'the free end of the roll material to be held against-the a roll material strip cutter-wherein the cutter is mounted On an. outer end portion of the roll materialand is held in: a: desired position of ad'- justment thereon by spring tension.

. A further object of" the invention is to provide a roll material strip cutter: movably'mountedon an extent of the outer en'd portion of: the roll". material itself'and adapted t'ozbe housed within the confines of the! spool on:which the roll ma-'-' terial is wound, which is inexpensive to manufacture, which is easily applied. to r011 material of all. classes, whicl'il isrsimpla to: adjust and.

manipulate, and whiclh well adaptedixfor the" purposes. described:

With. the above: and? other: objects in: view the? invention: consists: of the improved: roll. material" tion of the wound roll material. Besides the wound materialhoused'on thespool between the side. flanges. 9' thereof, in the present. adaptation, the projecting side'fianges also accommodate nated generally bythe numeral. l0; and which. is

shiftablypapplied to a portion of an outer. ex-

tent of the roll material;

Said roll material ll. may be of any of the known classes of'adhesive tape, but the invention strip. cutter: and. itsvv parts; and. combinations as.

In the accompanying drawing in which: they same reference characters indicate the same parts in all of the views:

Fig. 1 is a perspective'aview' of aspool of roll material having the improved strip cutter applied to an outer extent of the material, the spool of material with the strip cutter on the material being shown;enc1osed.-within a housing or covering member, a wall portion of the latter being broken away; i

Fig. 2 is a perspective View: ofa spool of roll material removed from its housing and with an extent of the roll material unwound, the end portion of the unwound extent-ofthe material having mounted thereon the improved strip cutter; V

Fig. 3 is -a similar perspectivavieW, only-show- I finds particularutility, in connection withtape carrying a pressure. sensitive adhesive. units inner surface.

, The improvedstrip cutter appliance is. of. a transverse. dimension. slightly less than. the distance betweenthe side. flanges 9 of the spool, and. the member Ill is. likewise relatively fiat so that whenit is applied toan extent of the roll material. It and-.saidextent'is in convolved positionon the spooLroll, the. cuttingappliance ID.

will lie compactly betweenthe spool. flanges 9 sov as to be housed-thereby. Through thisarrangement, withno projections beyond peripheral portions-of the spool the spool may be housed in aconventional:.frictionall engaged" ring cover or housing [2, as in; Fig. 1. When the-spool is to be removed from'therhousing l 2,: it is pressed it of the open: end. of .thesame axially;

- Referringtnowtmore particularly to Figs. 4', 5 and! 6 of the drawing, it will appear that the improved roll material strip cutter is preferably formed of springgmetal. and comprises an outer or front wall portion |3"- of rectangular formation: having an extensionportion" M of waved formation, asbest shownin Fig. 6. The rectangular thereon a: resilient plate portion ll; normally spaced slightly from inner surfaces of the portions I3' and [5. The medial part of the resilient platen is offset inwardly so as to be in closely spaced relation relative to the inner surface of the portion I 3 and is yieldable relative thereto.

free end of the resilient clip I! and the hook-like. fflange IE to register the strip material with the inner faces of the portions l3 and I4, and engag ing the upper longitudinal edge of the strip material under the hooked flange l and in the groove l6, all as is shown in Figs. 1, 2, 3 and 6.

The inwardly offset medial portion of the spring plate I! will yieldingly frictionally bear, upon slight pressure on clip 11, against the adhesive inner surface of the engaged roll material. Thus, the adhesive inner surface of the roll material causes the appliance to, adhere to the material in a desired position of adjustment and the appliance is thereby prevented from undesirably sliding or moving free of the outer end of the roll material. 1

Normally the strip cutter I0 is positioned on the outer end of the roll material II in the position shown in Figs. 1 and 2 with the free end of the roll material l8 projecting only slightly beyond the curved outer end flange IQ of the member 10. The inwardly bent or waved portion I9 will bear against the outer surface of the end extent of the roll material H to thereby press the inner surface of the same into adhesive engagement with the adjacent convolution of the roll material. Consequently the adhesive on the freed end of the roll material is held in contact with its adjacent convolution to protect the adhesive coating against deterioration.

In the use of the improved strip cutter as applied to a roll of adhesive tape, if it is desired to cut a strip of a desired length of material from the roll, the spool of material, removed from its housing or container, as inFig. 2, has an end extent of the roll material ll unwound to a desired length. Thereupon, the user may 4 was previously mentioned, the inwardly bent portion 19 of the extension will bear against the outer end of the'roll material to maintain it in engagement with the inner convolution. The spool as thus arranged may then be redisposed within its protective housing or ring enclosure.

Transparent adhesive tape, such as Scotch "tape, when in roll form, is quite diificult to use because the end of the outermost convolution may not be readily detected ordinarily. The present invention finds additional utility in coni-nection'with such types of tape because, being applied to the end of the roll material, it definitely acts as a marker or locating device therefor, besides serving as an adjustable means incorporated on the roll material for permitting the easy severance of strips of desired lengths.

The improved roll material strip cutter is inexpensive to manufacture, is easily applied to roll adhesive-tape material and remains associated therewith so as to be available for use at all times, is compact, is easy to manipulate and is well adapted for the purposes described.

What is claimed as the invention is: v 1. In combination with a standard spool formed with a pair of spaced side discs and elongated material wound on the spool between said discs, of a flat appliance shiftably mounted only on an outer end portion of said material and lying compactly thereon between the faces of the spool discs and inwardly of the peripheral portions of said discs, said appliance in its operative position being movable free of the spool with the outer end portion of the material carrying the appliance. I

2. The combination with aroll of flat adhesive tape material, of an appliance shiftably embracing an outer end portion of the outermost insert his forefinger against the inner surface of 4 causing a desired extent of the roll material to be projected beyond the outer end of the adjusted member ID; Then, by firmly holding the curved extension end of the strip cutter I0 with one hand and in contact with the roll material thereadjacent and by grasping the extended portion of the roll material with the other hand, as shown in broken lines in Fig. 3,-the desired length or strip of freed material may be severed from the material of the roll by tearing it across the sharp outer edge 20 of the cutter, as shown.

Successive strips of any desired lengths may be severed by repeating the operation described. After a strip or a series of strips have been severed from the roll material, it will be observed that the cutter appliance ID will be mounted on an outer end portion of the roll material in about the condition of Fig. 2. This is very convenient for the storing of the spool, as it is merely necessary to Wind the outer extent of the roll material onto the spool and the free end of the material may be pressed into adhesion onto the adjacent convolution to hold it in position. As

convolution of the roll material, said appliance having anouter wall and an inner resilient plate portion spaced therefrom, opposite margins of the'outer wall portion being formed with inturned U-shaped flanges to engage and embrace opposite margins of the flat adhesive tape material extended between the outer wall and the inner plate portionof the appliance, the appliance also having a transverse edge portion to cut an'outer ex- I tent of the roll material freed from the roll and 'i. to a portion of the pulled outwardly thereagainst.

3. In combination with a core having elongated flat adhesive tape wound thereon, of a flat appliance shiftably mounted only on an outer end portion of said tape material and lying compactly thereon, said appliance in its operative position being movable free of-the normal perimeter of the wound material with the outer end portion of the tape material releasably adhering appliance and carrying the latter.

JOHN S. MACINTYRE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 127,879 Higby June 11, 1872 1,408,499 Castenline et al Mar. 7, 1922 1,704,474 Hayden Mar. 5, 1929 2,138,979 Mobley Dec. 6, 1938 2,229,961 Deane June 28, 1941 2,272,628 Anderson Feb. 10, 1942 2,423,004 Butler June 24, 1947 

